PLEASE, DON'T RATE WITH ONE STAR BEFORE CONTACTING US TO REPORT AN ERROR. THIS APPLICATION DOES NOT WORK ON EVERY PHONE BECAUSE OF DIFFERENT RESTRICTIONS OF YOUR MOBILE CARRIERS. WE ARE ALWAYS DEVELOPING HARD TO HELP FIND GOOD SOLUTIONS TO GET EVERYONE CAPABLE TO DO TETHERING WITHOUT ROOT. PLEASE JUST REPORT US YOUR ISSUE IN AN EMAIL AND WE WILL LOOK INTO IT. A COMMENT LIKE "Doesn't work, useless, or fail" DOES NOT HELP OTHER USERS OR THE DEVELOPERS.THANK YOU FOR YOUR KINDNESS.